lee this is already doable, but there is no cost, it's just knowledge.Hardly anyone can figure it out , except on a hypothetical basis.I have even tried to explain it to people without actually spilling the beans and they still don't get it.
Occasionally you get the odd mad scheme- like those people who give you a card that says excuse the unusual approach- and suggest if you ring this number you can earn £500 pw - or joeuk's putting twenty pound notes onto leaflets to get attention.I'd call things like this marketing gimmicks.And then there's your leaflets canvassers and marketing pros like kate.I'd call this persistence marketing and of course this does produce results, particularly as you are selling a good product.
But there is another way, a way that even the slowest member on here once he's seen it would say- well that's obvious- blindingly obvious and blindingly successful.And because of this it makes your idea redundant because anyone can do this for nothing, they just need the knowledge.